The following table disaggregates revenue by global product category for the three and six months ended July 1, 2018 and July 2, 2017.



	Three Months Ended				Six Months Ended
	July 1, 2018		July 2, 2017		July 1, 2018		July 2, 2017
Revenue by global product category_{(1) (2)}	(Dollars in thousands)
Vascular access	$	140,604	$	133,323	$	284,845	$	263,345
Anesthesia	89,810		85,938		175,229		167,143
Interventional	77,179		68,425		148,858		112,391
Surgical	90,489		90,740		176,139		178,044
Interventional urology	47,674		—		89,974		—
OEM	52,594		45,132		98,448		88,478
Other₍₃₎	111,516		105,055		223,603		207,093
Net revenues	$	609,866	$	528,613	$	1,197,096	$	1,016,494

(1)

The product categories listed above are presented on a global basis; in contrast, the Company’s North American reportable segments generally are defined largely based on the particular products sold by the segments, and its non-North American reportable segments are defined exclusively based on the geographic location of segment operations (with the exception of the Original Equipment and Development Services ("OEM") reportable segment, which operates globally). The Company’s EMEA and Asia reportable segments, as well as its Latin America operating segment, include net revenues from each of the product categories listed above.

(2)

The methodology used to determine the product revenues included within certain of the product categories listed in the table above differs from the methodology used to recognize revenues in our reportable segments, including the similarly named North American reportable segments. The differences are due to the fact that segment classification generally is determined based on the call point within the customer's organization from which the purchase order resulting in the sales originated, while the classification of products within the product categories listed in the table above includes all sales of products within the listed product category, regardless of the call point within the customer's organization from which the sales originated.

(3) Other revenues in the table above comprise the Company’s respiratory, urology and cardiac product categories.